When to plant potato in New Haven
Potato is cold-hardy, so every date keys off New Haven's frost dates of Apr 19.
Step 1 · Sow
Direct sow outdoors
Apr 9 – Apr 30
Sow straight into warm, workable soil.
Step 2 · Harvest
Harvest window
Jun 18 – Aug 7
Picking runs until conditions turn against the crop.
Window
Days to maturity
70 – 120 d
New Haven's 184-day season leaves this much room.
Potato on New Haven's growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
FROST
HARVEST
APR 19
OCT 19
Common questions
When can I sow potato outdoors in New Haven?
Direct-sow around early April (Apr 9–Apr 30) in New Haven, based on its local frost dates. Confidence 81%.
When will potato be ready to harvest in New Haven?
Expect to harvest from around mid June (Jun 18–Aug 7) in New Haven, based on its local frost dates. Confidence 75%.
How long is the growing season in New Haven?
New Haven has roughly 184 frost-free days, which is enough time to grow potato to maturity outdoors.
The rule of thumb
Sow potato as soon as the soil is workable — it tolerates cool weather and light frost. Every date on this page is derived from that rule and New Haven's frost dates.
Confidence 83/100 · Curated · based on NOAA GHCN-Daily 1991–2020 normal · frost dates are probabilities, not guarantees.